// libTorrent - BitTorrent library
// Copyright (C) 2005-2007, Jari Sundell, Dominik Psenner
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
// 
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
// 
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
//
// In addition, as a special exception, the copyright holders give
// permission to link the code of portions of this program with the
// OpenSSL library under certain conditions as described in each
// individual source file, and distribute linked combinations
// including the two.
//
// You must obey the GNU General Public License in all respects for
// all of the code used other than OpenSSL.  If you modify file(s)
// with this exception, you may extend this exception to your version
// of the file(s), but you are not obligated to do so.  If you do not
// wish to do so, delete this exception statement from your version.
// If you delete this exception statement from all source files in the
// program, then also delete it here.
//
// Contact:  Jari Sundell <jaris@ifi.uio.no>
//
//           Skomakerveien 33
//           3185 Skoppum, NORWAY

#include "config.h"

#include "upnp_manager.h"

namespace upnp {
	UPnPManager::~UPnPManager() {
	}

	bool	UPnPManager::running() {
		return false;
	}

	void	UPnPManager::receive_tick() {
		if ( running() ) {
			// in a tick we can and should check if we have a lease
			if( gotLease() ) {
				// if we have a lease, check if it is still valid
				if(!isLeaseValid()) {
					// if not release it and try to acquire one immediately
					releaseLease();
					tryAcquireLease();
				} else {
					// we have a lease
					// but we have to check if it will expire soon
					if (leaseExpiresSoon()) {
						// if so, renew the lease
						renewLease();
					} else {
						// if not it is still valid; keep it
					}
				}
			} else {
				// if not we should try to acquire a lease
				tryAcquireLease();
			}
		}
	}

	void	UPnPManager::releaseLease() {
		// TODO
	}

	void	UPnPManager::renewLease() {
		// TODO
	}

	void	UPnPManager::tryAcquireLease() {
		// TODO
	}

	bool	UPnPManager::leaseExpiresSoon() {
		// TODO
		return false;
	}

	bool	UPnPManager::isLeaseValid() {
		// TODO
		return false;
	}

	bool	UPnPManager::gotLease() {
		// TODO
		return false;
	}

	void	UPnPManager::releasedLease(port_type port) {
			// once we got a lease, we must set the connection manager to use it
			//m_connectionManager->listen_close();
			// TODO check if this actually would work; somehow we need to tell the connection manager where to listen at once we have no lease
			//m_connectionManager->listen_open(0, 0);
		}
	void	UPnPManager::acquiredLease(port_type port) {
		// once we got a lease, we must set the connection manager to use it
		//m_connectionManager->listen_close();
		//m_connectionManager->listen_open(port, port);
	}
}
